Improvement in loom-shuttles



UNITED If PATENT QFFICE.

JOSEPH MARTIN, OF LOWELL, MASSACHUSETTS, ASSIGNOR TO ASA O. RUS- SELL, DAVID G. G. FIELD, LUTHER J. EAMES, JAMES Gr. BUTTRIOK, JOSEPH MARTIN, AND GEORGE S. OUSHING, OF SAME PLACE.

IMPROVEMENT IN LOOM-SHUTTLES.

Specification forming part of Letters Patent No. 12$,l84, dated January 30, 1872.

Specification describing certain Improve ments in Shuttles for Weaving Narrow Fabrics, invented by JOSEPH MARTIN, of Lowell,

, device therein, and in relation to the shuttlerace or race-planks, in the manner and for the purposes hereinafter specified.

The accompanying drawing represents my invention. (The lines which represent length and breadth are drawn on a scale of4 to 5, and the lines which represent depth are drawn on a scale of 4 to 15.)

A is the lathe. B is the shuttle, having two projections, G G, between which is placed the spool O, the back of the shuttle being open between these, so that the spools can be inserted and taken out at the back side of the shuttle. F is a gear working intoa rack on the under side of the shuttle, and by means of which the shuttle is operated. D D are two ten sion-bars, one being fixed and the other movable laterally toward and from the fixed bar, the tension on the yarn being created by the two springs E E, placed one at each end of said bars, and pressing upon the upper or movable bar. The tension-bars are situated in a separate opening or space in the front part of the shuttle, as far as practicable from the back opening in which the quills are placed, there being. a narrow slot or interior communication between the two openings, so that the yarn or thread can have free passage through the shuttle, with sufficient extent of traverse to allow the same to unwind from all parts of the quills freely, and also traverse between the tension-bars, so as to pass directly from the quills to the delivery-eyelet at all times and with uniform tension. The two separate openings are on opposite sides of the shuttle-ways or race-planks, and the narrow space or slot between the openings enables the shuttle to be of less thickness than it could otherwise be. The spool O, filled with yarn, is placed between the two projections G G, and one end of the yarn drawn through the space between the tension-bars, and from thence through an eyelet, H, in the front portion of the shuttle.

I have found by experience that when the spool is placed in that part of the shuttle where my '[GllSlOll-bitlS are located, it does not work advantageously on account of the limited space allotted for the same, and the consequent dif ficulty of giving a suitable tension to the thread. This shuttle is only used in weaving narrow fabrics, and consequently must be made small. Another advantage obtained by using my invention is, the employment of larger spools, whereby I am enabled to run my lathes for a longer period of time than formerly without stopping to change spools. The arrangement of the tension device lessens the danger of breaking the yarn by knots coming in contact with the bars.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. A shuttle, B, for weaving narrow fabrics, having an open back to receive the quills back of the shuttle-race, and a separate opening or space in the front or opposite side thereof to receive the tension device, all arranged sub stantially as and for the purpose herein specified.

2. In combination with the above, the long tension-bars l) D, constructed and operating as described, when arranged between the quills and delivery eyelet in such a manner as to afford uniform tension to the yarn delivered from all parts of the quills, substantially as herein specified.

JOSEPH MARTIN Witnesses:

NATHANIEL HILL,

ALBERT M. MOORE.

JOSEPH MARTIN.

Improvement in :Loom Shuttles. v

No. 123,184. temdj go, 1m; 

